Attachment for dust collectors



June 3, 1930. J. A.- GUTH ATTACHMENT FOR DUST COLLECTORS Filed May 12,1928 2 Sheets-Sheet l Inventor J ga/ffi Attarnqy June 3, 1930. J. A.GUTH ATTACHMENT FOR DUST COLLECTORS Filed May 12, 1928 2 Sheets-Sheet 2l l W m Inventor Patented June 3, 1930 UNITED STATES JOHN ADAM GUTH, OFCOVING'ION, KENTUCKY ATTACHMENT FOR DUST COLLECTORS Application filed m12,

This invention relates to new and useful improvements in dust collectorsthat are used in saw mills, planing mills, and allied industries, andhas more particular reference to a particular attachment for generallyconventional dust collectors of this character. In practically allsawmills, planing mills, and other factories, there is provided means forcollecting the dust from the various machines,

these devices including a large structural unit arranged upon the roofof the building, and into which the dust collected from the variousmachines is projected, means being provided within the said unitswhereby to cause the 5 projection of the dust into a bin arranged uponthe roof or at a lower'level than said roof. These structural unitsarranged upon the building have a vent opening to permit A the air to bedischarged therefrom. It is a '20 known fact that very fine dust will bedischarged with the exhaust air permeating the atmosphere for milesaround, causing. great annoyance to surrounding homes and build ings. Myinvention has for its object to provide' a device constructed forarrangement within the vent pipeof the structural unit of a generallyconventional dust collector whereby the fine dust is positivelycollected and thence thrown downwardly through the unit toward the dustbin, so that the air escaping from the vent of the unit will be free ofall dust. I v .An important object of the'invention is to provide adevice of this character that is eX- tremely simple of construction andinexpensive of manufacture, and that may be installed in conventionaldust collecting devices now in use without affecting the operationthereof or without requiring great expenditure for installation.

With the foregoing and other objects in viewthe nature of the inventionwill be better understood, the same comprises the novel form,combination and arrangement of parts hereinafter more fully'described,shown in the accompanying drawings and claimed.

In the drawings wherein like reference characters indicate correspondingparts throughout the several views:

Figurel is a fragmentary diagrammatic 1928. Serial No. 277,281.

my in mentary section through the fan unit of the device, and p Figure 3is a horizontal transverse section taken through the fan unit at a pointdirect: ly above the fan element.

Now having particular reference to the drawings, A in Figure 1designates a fan housing of a generally conventional dust collectorwhich is arranged within the building fragmentarily disclosed in Figure1 and leading from which are dust collecting pipes athat extend to thevarious dust emitting ma chines within the plant. Leading from this fanhousing A is a pipe I) that extends upwardly within the plant andprojects through an opening in the roof, while arranged upon the roof isthe dust separating uni-t B of the said collector, which unit hascommunication with the housing A through the medium of I said pipe 6.This dust separating unit B includes among other elementsa dustchamberor receiver 0 having communication at its lower end with a dustbin D, while leading from the top of the chamber 0 is a vent pipe Ethrough which the air generated in the fan housing A is permitted toescape. My inven tion per se consists of a fan housing 5 of suitablearea and design, the same having an in take pipe 6 at its lower endcommunicating with the upper interior of the chamber C at'a'. pointabove the lower end of the vent pipe E, and a discharge pipe 7 at itsupper end. Rotatably mounted within this housing 5 is a fat-n.8, theblades of'which are provided with felt or other absorbent material pads9, the ends thereof projecting beyond the ends of the blades so astoengage at least the opposed end walls of the housing during the rotationof the fan. The shaft 10 upon which the fan unit is mounted extendsthrough bearings within the opposed side walls of the housing 5, saidshaft being op-- eratively associated at one end with a suitableelectric motor 11, and supported and journaled at its opposite endwithin a suitable bearing 12. As disclosed in Figure 1, this device isarranged within the vent pipe E of the dust collector disclosed inFigure 1, said bearing 12 being suitably mounted within the vent pipe,while the said motor 11 is supported upon the top of the said chamber 0of the separator B of the collector, the shaft 10 being arranged throughan opening in said vent pipe, as disclosed. Arranged upon the upper endof the fan housing 5 is a fluid container 13 having a small dischargeorifice 14 leading into the interior of the housing 5, said chamberhaving communication with a suitable capacity supply tank 15 which hascommunication with and is supported upon said chamber through the mediumof a pipe 16 within which is located a regulating valve 17. Obviouslythe fluid dripping from the chamber 13 will fall upon the absorbent pads9 so that when the dust comes into contact therewith it will bemoistened and weighted, and insomuch as the exhaust pipe 7 of saidhousing 5 is located at a point beneath the inlet end of the vent pipe Eof the separator unit B, said moistened dust will be reconveyed into thechamber 0 and eventually reach the collecting bin D.

It will thus be seen that I have provided a novel, simple, and extremelyuseful and efficient attachment for dust collectors, whereby to preventthe escape of fine dust through the vent pipes of said dust collectors,and even though I have herein shown and described the'invention asconsisting of certain detail structural elements it is nevertheless tobe understood that some changesmay be made therein without affecting thespirit and scope of the appended claims.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent is 1. A moistening attachment for dustcollectors, wherein the said collector includes a receiver, a vent pipeextending above the receiver and depending therein, said collectorhaving an inlet; a rotary moisture containing body, a casing for saidbody, an inlet pipe communicating with said casing at one end and havingits remote end disposed within the receiver and terminating at a pointabove the open end of the vent pipe, and an outlet for the casing.

2. A moistening attachment for dust collectors, wherein the saidcollector includes a receiver, a vent extending above the receiver anddepending therein, and an inlet, a rotary moisture containing body, acasing for said body, an inlet pipe communicating with said casing atone end and having its remote end disposed within the receiver andterminating at a point above the open end of the vent pipe, and anoutlet pipe for the casing, said outlet pipe being disposed into thesaid receiver with its discharge end depending below the inner end ofthe vent pipe.

3. A moistening attachment for dust ,collectors, wherein the saidcollector includes a receiver, a vent extending above the receiver anddepending therein, and an inlet, a rotary moisture containing body, acasing for said body, an inlet pipe communicating with said casing atone end and having its remote end disposed within the receiver andterminating at a point above the open end of the vent pipe, and anoutlet for the casing, said moisture containing body comprising a shaft,a rotary member on the shaft provided with a plurality of radiatingarms, and pads of moisture absorbing material secured to the said arms.

4:. A moistening attachment for dust collectors, wherein the saidcollector includes a receiver, a vent extending above the receiver anddepending therein, and an inlet; a rotary moisture containing body, acasing for said body, an inlet pipe communicating with said casing atone end and having its remote end disposed within the receiver, andterminating at a point above the open end of the vent pipe, and anoutlet for the casing, said moisture containing body comprising a shaft,a rotary member on the shaft provided with a plurality of radiatingarms, and pads of moisture absorbing material secured to the said arms,means for rotating the said shaft, anal means for supplying liquid tothe said pa r 5. A moistening attachment for dust collectors, whereinthe said collector includes a receiver, a vent extending above thereceiver and depending therein, and an inlet, a rotary moisturecontaining body, a casing for said body, an inlet pipe communicatingwith said casing at one end and having its remote end disposed withinthe receiver, and terminating at a point above the open end of the ventpipe, and an outlet for the casing, said moisture containing bodycomprising a shaft, a rotary member on the shaft provided with aplurality of radiating arms, and pads of moisture absorbing materialsecured to the said arms, means for rotating the said shaft, and meansfor supplying liquid to the said pad, a reservoir mounted upon thecasing, a duct communicating the reservoir with the interior of thecasing throu h the top wall thereof, and means whereby t e saidreservoir may be replenished.

6. An attachment for dust collectors, wherein the collector includes adust separating unit having an air vent pipe and a dust receiving bin; afan housing arranged within the vent pipe and having an intake pipe, andan exhaust pipe, said exhaust pipe extending downwardly below the intakepipe, a rotary fan mounted within the housing whereby to draw the airand fine dust into the housing and to deliver the fine dust into theseparator unit at a point below the outlet of said separator unit ventpipe, and an absorbent material pad secured to the said fan blade on thesides thereof forwardly of the direction of travel thereof.

7 An attachment for dust collectors wherein the collector includes adust separating unit having an air vent pipe and a dust receiving bin; afan housingarranged within the vent pipe and having an intake pipe andan exhaust pipe, said exhaust pipe extending downwardly below the intakepipe, a rotary fan mounted within the housing whereby to draw the airand fine dust into the housing and to deliver the fine dust into theseparator unit at a point below the out let of said separator unit ventpipe, and an absorbent material pad secured to the said fan blade on thesides thereof forwardly of the direction of travel thereof, said padadapted to be moistened whereby to settle the dust coming into contacttherewith, and means for supplying fluid to said absorbent ads.

p In testimony whereof I afiix my signature.

MR. JOHN ADAM GUT H.

